Jumpy captain? (7)

I believe the answer is:

skipper

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'captain?' is the definition.
(I know that captain can be written as skipper)

I can't explain the rest of the clue.

(Other definitions for skipper that I've seen before include "being in charge?" , "One who misses" , "delicate winger?" , "Senior pilot" , "sleep in outhouse" .)

I've seen this clue in the Evening Standard.

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